Allow ESD1 to be initialized at negative power by setting lower limit…

… of PHL to `-pmx`.
CURENT · Sep 10, 2024 · c7e7304 · c7e7304
1 parent 8d8ae0c
commit c7e7304
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/andes/models/distributed/esd1.py b/andes/models/distributed/esd1.py
@@ -3,6 +3,7 @@
 from andes.core.block import Integrator
 from andes.core.discrete import HardLimiter, LessThan
 from andes.core.param import NumParam
+from andes.core.service import ConstService
 from andes.core.var import Algeb, AliasState
 from andes.models.distributed.pvd1 import PVD1Data, PVD1Model
 
@@ -53,6 +54,10 @@ class ESD1Model(PVD1Model):
     def __init__(self, system, config):
         PVD1Model.__init__(self, system, config)
 
+        self.pmin = ConstService(v_str='-pmx')
+
+        self.PHL.lower = self.pmin
+
         # --- Determine whether the energy storage is in charging or discharging mode ---
         self.LTN = LessThan(self.Ipout_y, 0.0)